Comments

From: Zheng Liu <wenqing.lz@taobao.com>
EXT4_MAP_FROM_CLUSTER flag is only used in ext4_da_map_blocks() and
ext4_ext_map_blocks() to indicate whether a cluster has been reserved or
not. But in ext4_da_map_blocks() we can check it directly. Meanwhile
this flag couldn't appear on the buffer head. So it can be replaced
with a local variable.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
---
fs/ext4/ext4.h | 15 +--------------
fs/ext4/extents.c | 18 ++++--------------
fs/ext4/inode.c | 11 ++---------
3 files changed, 7 insertions(+), 37 deletions(-)